CN102942300B - Glass geometric parameter measurement system based on linear array ultraviolet detector - Google Patents
Glass geometric parameter measurement system based on linear array ultraviolet detector Download PDFInfo
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- CN102942300B CN102942300B CN201210505679.0A CN201210505679A CN102942300B CN 102942300 B CN102942300 B CN 102942300B CN 201210505679 A CN201210505679 A CN 201210505679A CN 102942300 B CN102942300 B CN 102942300B
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Abstract
The invention provides a glass geometric parameter measurement system based on a linear array ultraviolet detector. The system comprises a heat furnace, upper platforms are arranged on two sides of the heat furnace, a tempered cooling section, a lower platform, a control system, an ultraviolet detection mechanism, a light source capable of outputting ultraviolet light, and a signal collector which is used for capturing an ultraviolet signal and converting the ultraviolet signal into a usable signal. According to the system, the intensity of light which passes through glass can be detected through a filter window and a large-scale optical detector based on the attenuation characteristic of common glass to ultraviolet light, so that a light attenuation region matched with the profile of glass is formed, and the aim of measuring geometric parameters of glass can be achieved. The detection mechanism in the system adopts an integrated design, is compact in structure and convenient to assemble, and has strong adaptability when being assembled with other processing devices; and the detection system can be used for effectively filtering visible light by double filter on visible light in the detection process, the influence of external light changes on the system can be avoided, and the accuracy of model identification can be improved.
Description
Technical field
The present invention relates to a kind of measuring system for glass geometric parameter, be specifically related to a kind of glass geometric parameter measurement system based on linear array ultraviolet light detector.
Background technology
At present, glass industry gradually adopts light source combining camera to measure to reach the object of implementing monitoring in process of production to the synthetic geometry parameter of glass, for example, publication: shatter proof glass is produced and the method and apparatus of controlled working process for monitoring, the method and equipment utilization high-intensity light source are radiated at tested glass surface, camera is analyzed relevant data at the light intensity signal reflecting by acceptance, the shortcoming having in the method is: one, in use the angle of the incident angle to light and detection faces has particular requirement, in the time angle be set have deviation, measure the data that obtain and also have larger error, two, in this device measuring process, be vulnerable to the impact of extraneous visible ray, this is by the data out of true that causes measuring.
Summary of the invention
The deficiency existing in order to overcome prior art, technical problem to be solved by this invention is to provide a kind of glass geometric parameter measurement system based on linear array ultraviolet light detector, this measuring system strong adaptability, and in measuring process, can effectively avoid extraneous light to change the impact on the measuring precision, improve the accuracy of glass type identifier.
The technical solution adopted in the present invention is: the glass geometric parameter measurement system based on linear array ultraviolet light detector, comprise the process furnace that glass is carried out to tempering processing, be arranged on upper slice platform of process furnace both sides, tempering cooling section and lower platform, for controlling the Controlling System of annealing furnace working process, on upper platform and lower platform, be respectively equipped with roller-way transporting mechanism, roller-way transporting mechanism is provided with multiple roller-ways, drive detected glass to move on upper platform and lower platform by the rotation of roller-way, also be provided with UV-light feeler mechanism, the light source of UV-light feeler mechanism ultraviolet light between 200～360nm by output wavelength scope and forming for flutterring the signal picker of catching ultraviolet signal and being converted into available signal, described signal picker is provided with a housing, housing front end is provided with filter window, filter window has the passband of 200nm-410nm, in housing, be packaged with the photodetector array with fluorescent material, the peak value of response of this fluorescent material is at 310nm, light source is arranged on the top of process furnace entrance, signal picker is arranged on the below of a platform, the light beam irradiates that light source sends is on the neutral gear face between two roller-ways, the light beam irradiates face that in signal picker, the imaging region of photodetector array sends with light source is corresponding, the signal output part of signal picker is connected in Controlling System, when glass passes through surveyed area, glass carries out overdamp to UV-light, the part being sheltered from by glass, corresponding probe access output numerical value photosignal on the low side, the probe access output numerical value of the part correspondence of not blocking is higher than the photosignal output of blocking place, through the relative movement of glass and signal picker, signal picker captures glass appearance profile, size, graphic information that thickness parameter is relevant, and this graphic information parameter is transferred to Controlling System.
Light source in described UV-light feeler mechanism is made up of housing and the ultraviolet source being arranged in housing, is also provided with collimating lens in the direction of UV-irradiation.
Housing in described light source and signal picker, is equipped with thermofin on its inwall, is also provided with heat exchange fan on housing.
Also be provided with a control device for start by set date UV-light feeler mechanism, the signal output part of control device is connected with light source and signal picker respectively, and control device scans the image in tested region for start by set date light source for system provides illumination and signal picker.
Described control device is arranged on roller-way transporting mechanism, is a rotary encoder, and rotary encoder comes start by set date light source and signal picker according to roller-way upper surface glass translational speed.
Described UV-light feeler mechanism can be arranged on upper slice platform by bracing frame, bracing frame is skeleton construction, light source is arranged on and is positioned on a bracing frame of platform top, signal picker is arranged on and is positioned on a bracing frame of platform below, on upper platform, be provided with rail plate, bracing frame is formed and is slidably connected by rail plate and upper slice platform.
This system can also be set up the detector array for catching visible light wave range, by the fusion of multispectral image information, the distributed intelligence of obtaining glass surface printed patterns is transferred to Controlling System.
A described side that is positioned at lower platform, is also provided with the UV-light feeler mechanism for detection of glass surface information after tempering, UV-light feeler mechanism by the information transmission collecting to Controlling System.
Owing to adopting technique scheme, the invention possesses following beneficial effect:
One, feeler mechanism in this system adopts integrated design, compact construction, convenient installation, adapt to strong with the supporting installation of other processing unit (plant)s, and in testing process, this detection system is passed through visible ray double filtration, filtering visible ray effectively, avoid extraneous light to change the impact on system, improve the accuracy of type identifier, secondly the signal picker adopting in feeler mechanism has the photodetector array of fluorescent material, this fluorescent material has higher assimilated efficiency at ultraviolet band, photodetector array can be realized the imaging of 5000mm/s mobile, further improve measuring speed.
They are two years old, during by this systematic survey load information, adopt the UV-light output of wavelength region between 200～360nm, after overdamp by glass, output light is through filter window, filter window adopts exotic materials to make, can form the passband of 200nm-410nm, this filter window can the most visible ray of filtering, therefore can further reduce the impact of visible ray, see through afterwards UV-light and the visible ray process fluorescent material of filter window, the peak value of response of this fluorescent material is at 310nm, visible ray is had to further filteration, there is stronger launching efficiency in the UV-light of 200～360nm wavelength region, through the effect of fluorescent material, launch the visible ray of 380-780nm scope, this part visible ray is received by photodetector array, form photoelectric current output proportional to optical throughput.In the time having glass to pass through, the UV-light that glass sends light source has overdamp effect, can form obvious difference with the region that there is no glass, thereby the appearance profile to glass is surveyed effectively, and can be good at getting rid of the impact of visible ray, avoid extraneous light to change the impact on the measuring precision, improve the accuracy of measuring.
Three, this patent, by a large amount of evidences, while adopting the UV-light of wavelength between 200～360nm, make this feeler mechanism's maximizing reduce the impact of extraneous visible ray, without the background that is provided for producing contrast according to glass colour, also without the impact of considering extraneous visible ray, it is best that measurement effect reaches simultaneously, and measuring accuracy is also improved simultaneously.
Four, be also provided with the rotary encoder for start by set date light source and signal picker, this rotary encoder arranges in roller-way transporting mechanism on roller-way, the travelling speed that is converted into roller-way transporting mechanism according to the circular frequency of roller-way is carried out start by set date photodetector array to monitored area imaging, determine on the one hand how long apart from photodetector array imaging once product is carried, i.e. the external trigger signal generating function of photodetector array; Determine on the one hand whether glass enters stove complete, i.e. the startup of UV-light feeler mechanism and end signal generating function.Ensure nothing left drain region, accuracy in detection is higher.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of the present invention.
Fig. 2 is the structural representation of the second embodiment of the present invention.
Fig. 3 is the structural representation of the third embodiment of the present invention.
Fig. 4 is the structural representation of the 4th kind of embodiment of the present invention.
Reference numeral: 1, glass to be detected, 2, process furnace, 201, process furnace entrance, 3, upper slice platform, 4, tempering cooling section, 5, lower platform, 6, roller-way transporting mechanism, 7, light source, 8, signal picker, 9, rotary encoder.
Embodiment
As shown in Figure 1, glass geometric parameter measurement system based on linear array ultraviolet light detector, comprise to glass carry out the process furnace 2 of tempering processing, the upper slice platform 3 that is arranged on process furnace 2 both sides, tempering cooling section 4 and lower platform 5, for controlling the Controlling System of annealing furnace working process, on upper platform 3 and lower platform 5, be respectively equipped with roller-way transporting mechanism 6, roller-way transporting mechanism 6 is provided with multiple roller-ways, drive detected glass to move on upper platform 3 and lower platform 5 by the rotation of roller-way
Also be provided with UV-light feeler mechanism, the light source 7 of UV-light feeler mechanism ultraviolet light between 200～360nm by output wavelength and forming for flutterring the signal picker 8 of catching ultraviolet signal and being converted into available signal, described signal picker 8 is provided with a housing, housing front end is provided with filter window, filter window has the passband of 200nm-410nm, in housing, be packaged with the photodetector array with fluorescent material, be and on photodetector array, scribble one deck fluorescent material, the peak value of response of this fluorescent material is at 310nm, forming array-like by multiple photodetectors is and forms photodetector array, light source 7 is arranged on the top of process furnace entrance 201, signal picker 8 is arranged on the below of a platform 3, the light beam irradiates that light source 7 sends is on the neutral gear face between two roller-ways, the light beam irradiates face that in signal picker 8, the imaging region of photodetector array sends with light source 7 is corresponding, the signal output part of signal picker 8 is connected in Controlling System, when system works, glass 1 to be detected is delivered to process furnace entrance by roller-way transporting mechanism, when roller bed rotation, the photodetector array simultaneously starting in light source and signal picker starts, the UV-light wire harness of light source output and a part of radiation of visible light are on the middle neutral face of roller-way, and the signal picker that is positioned at lower platform below carries out Imaging: Monitoring to this neutral region.In the time not having glass to pass through, Uv and visible light passes through filter window, this window can the most visible ray of filtering, ultraviolet wavelength, in the passband of filter window, arrives fluorescent material, the further filtering of visible ray that this fluorescent material is come in to transmission by the effect of light of filter window, UV-light is produced to strong absorption, launch visible ray by fluorescent effect, the visible ray being excited by incident uv is obtained by photodetector array, forms stronger signal output; In the time that glass passes through surveyed area, glass carries out overdamp to UV-light, the probe access output photoelectric signal corresponding by glass shield portions is lower, probe access output photoelectric signal corresponding to the part that is not blocked exported apparently higher than the photosignal of shield portions, by the relative movement of glass to be detected and signal picker, photodetector array captures glass appearance profile, size, graphic information that thickness parameter is relevant, and is transferred to Controlling System after will this graphic information parameter transforming.Glassy product enters in stove process, Controlling System is processed the graphic information gathering, obtain profile synthetic geometry parameter, and utilize the method for multiparameter fuzzy diagnosis to identify its model, arrangement in patterned mode to glass, synthetic geometry parameter, profile show, by USB, glass model and overall dimensions parameter are transferred to Controlling System, Controlling System is carried out Lookup protocol according to the glass synthetic geometry parameter obtaining to machined parameters simultaneously.
In this system, light source 7 in described UV-light feeler mechanism can adopt ultraviolet source, this light source output ultraviolet light and a part of visible ray, this ultraviolet source can adopt commercially available low pressure mercury lamp, ultraviolet source outside is provided with housing, adopts surrounding closure designs, adopts collimating lens at illumination direction, reduce the impact of scattered light, can prevent that light source from irradiating operator simultaneously.The transfer process of ultraviolet light is as follows: ultraviolet source output ultraviolet light, filter window adopts exotic materials to make, can form the passband of 200nm-410nm, this filter window can the most visible ray of filtering (simple glass to the transmitance of visible ray generally higher than 80%), see through UV-light and the visible ray process fluorescent material of filter window, the peak value of response of this fluorescent material is at 310nm, visible ray is further filtered, the UV-light of 200～360nm wavelength region is had to stronger launching efficiency, through the effect of fluorescent material, launch the visible ray of 380-780nm scope, this part visible ray is received by photodetector array, form photoelectric current output proportional to optical throughput.In the time having glass to pass through, the UV-light that glass sends light source has overdamp effect, can form obvious difference with the region that there is no glass, thereby the appearance profile of glass is surveyed effectively, and can be good at getting rid of the impact of visible ray.The method all has good adaptability to characteristic parameters such as product colour, shape, face bend, transmittance, sizes.
The present invention is based on the attenuation characteristic of simple glass to UV-light, by filter window and extensive photodetector array, the light intensity of passing after glass is surveyed, thereby form the optical attenuation region of mating with glass appearance profile, reach the object of glass geometric parameter measurement; And this system adopts the UV-light of wavelength between 200～360nm as imaging system light source, mix this kind of light source transmittance, reflectivity, inside to glass, surface printing ink colors etc. has good suitability.
Housing in described light source 7 and signal picker 8, all can adopt metal shell, and inwall is provided with thermofin, and is furnished with heat exchange fan, and the fluorescent material in assurance device and the working temperature of photodetector array improve the work-ing life that repacking is put indirectly.
Signal picker in UV-light feeler mechanism described in this patent can adopt the photodetector that scribbles fluorescent material, the photodetector array that can adopt multiple photodetectors to form, realize effective detection of the UV-light within the scope of 200nm-380nm, this photodetector array is arranged in housing, housing front end is filter window, the most visible ray of filtering effectively, and UV-light is had to strong transmitance.Photodetector array is relevant according to the accuracy of detection of the width of system rollgang and geometric parameter, surveyed area described in this patent is a longer and narrower region, therefore in ensureing roller-way width, the region that can cause glassy product direction of motion to cover is also larger, so, this patent adopts multiple-piece multidiameter delay mode to design detector, the peak width covering such as system is 2000 millimeters, select the linear array of 80 128 pixels to splice (monolithic useful length is 25mm), form effective surveyed area and be the extensive linear array ultraviolet light detector of 2000 millimeters, resolving power reaches 0.19mm.System has pixel bin function, monolithic can be designed to 64 passage outputs, and systemic resolution can reach 0.39mm, and simultaneity factor overall channel number reaches 5120, and while comparing full resolution, port number reduces half, and detection speed can be higher.
In testing process in order to reduce omission, also be provided with a control device for start by set date UV-light feeler mechanism, the signal output part of control device is connected with light source 7 and signal picker 8 respectively, control device scans the image in tested region for start by set date light source 7 for system provides illumination and signal picker 8, described control device is arranged on roller-way transporting mechanism 6, be a rotary encoder 9, rotary encoder 9 comes start by set date light source 7 and signal picker 8 according to roller-way upper surface glass translational speed.Described in this patent, the total length of the rollgang of system is certain, the actual useful length of putting that is product can be determined by the length of rollgang, described rotary encoder 9 mainly completes the task of two aspects, determine that on the one hand how long product carry Range Imaging once, i.e. the external trigger signal generating function of photodetector array, determine on the one hand whether material enters stove complete, i.e. the startup of UV-light feeler mechanism and end signal generating function, be further to optimize this technical scheme simultaneously, described UV-light feeler mechanism is transportable, as shown in Figure 3, UV-light feeler mechanism can be arranged on upper slice platform by bracing frame, bracing frame is skeleton construction, and light source and signal picker are distributed in the both sides of a platform, light source is arranged on and is positioned on a bracing frame of platform top, signal picker is arranged on and is positioned on a bracing frame of platform below, on upper platform, be provided with rail plate, bracing frame is formed and is slidably connected by rail plate and upper slice platform, the transmission plane parallel at the plane at rail plate place and roller-way transporting mechanism 6 places, bracing frame moves up along the side of rail plate, that is to say plane that bracing frame moves and the transmission plane parallel at roller-way transporting mechanism place, this structure has two kinds of detection modes, the first, detected glass keeps motionless, moves with the bracing frame of UV-light feeler mechanism, now, described control device can be selected velocity sensor, and this velocity sensor comes start by set date light source and photodetector array according to the translational speed of bracing frame, ensures nothing left drain region, the second, now detected glass and UV-light feeler mechanism have two kinds of kinestates, glass and feeler mechanism go in the same direction or go in the same way, now, described control device still can be selected velocity sensor, the speed of relative movement relation that this velocity sensor moves according to the movement of bracing frame and roller-way upper glass is come start by set date light source and photodetector array, the object that this velocity sensor is set be equally distance collected by camera for controlling a surveyed area of the every walking of glass once, ensure nothing left drain region.
This system can also install the detector array for catching visible light wave range additional, by the fusion of multispectral image information, the distributed intelligence of obtaining glass surface printed patterns is transferred to Controlling System, improves the useful range of this system.
As shown in Figures 2 and 3, in order to improve the closed-loop control performance of this system, can be after a side of lower platform 5 of process furnace 2 opposite sides be provided for detecting tempering the UV-light feeler mechanism of glass surface information, UV-light feeler mechanism by the information transmission collecting to Controlling System.To detect principle identical with the feeler mechanism at upper slice platform place for it, for detection of the surface information of glass after processing treatment, equally by this information transmission to Controlling System, therefore, make contrast by Controlling System, can analyze processing quality, the yield rate of product, also can be used for the comprehensive production information of the product of observing same batch simultaneously, realize the automatic production ability of this equipment.
As shown in Figure 4, on upper and lower platform of upper platform, be equipped with packaged type bracing frame, on bracing frame, be provided with the UV-light feeler mechanism for detection of glass surface information.
In the time that the UV-light feeler mechanism described in patent receives the triggering signal of rotary encoder 9, photodetector array starts exposure and gathers a line signal data and be stored in the specified location in internal memory; In the time receiving the end signal of rotary encoder 9, photodetector array stops detecting thread, starts to carry out view data processing.For example establishing single data is 5120*1, and times of collection is 2000, and the data bit degree of depth is 8, and total amount of data is 78Mbit.Image processing described in this patent comprises feature point extraction, unique point screening, the differentiation of glass number, the demonstration of glass appearance profile figure, thickness of glass, glass size etc., and above-mentioned parameter is carried out to mathematical character, this process can be for setting up product database, on the other hand can by with product library in data contrast and judge product type.
Claims (8)
1. the glass geometric parameter measurement system based on linear array ultraviolet light detector, comprise the process furnace (2) that glass is carried out to tempering processing treatment, be arranged on upper slice platform (3) of process furnace (2) both sides, tempering cooling section (4) and lower platform (5), for controlling the Controlling System of annealing furnace working process, on upper platform (3) and lower platform (5), be respectively equipped with roller-way transporting mechanism (6), roller-way transporting mechanism (6) is provided with multiple roller-ways, drive detected glass upper mobile at upper platform (3) and lower platform (5) by the rotation of roller-way, it is characterized in that,
Also be provided with UV-light feeler mechanism, the light source (7) of UV-light feeler mechanism ultraviolet light between 200～360nm by output wavelength and forming for the signal picker (8) that catches ultraviolet signal and be converted into available signal, described signal picker (8) is provided with a housing, housing front end is provided with filter window, filter window has the passband of 200nm-410nm, in housing, be packaged with the photodetector array with fluorescent material, the peak value of response of this fluorescent material is at 310nm, light source (7) is arranged on the top of process furnace entrance (201), signal picker (8) is arranged on the below of a platform (3), the light beam irradiates that light source (7) sends is on the neutral gear face between two roller-ways, in signal picker (8), the imaging region of photodetector array is corresponding with the light beam irradiates face that light source (7) sends, the signal output part of signal picker (8) is connected in Controlling System, when glass passes through surveyed area, glass carries out overdamp to UV-light, the part being sheltered from by glass, corresponding probe access output numerical value photosignal on the low side, the probe access output numerical value of the part correspondence of not blocking is higher than the photosignal output of blocking place, through the relative movement of detected glass and signal picker (8), signal picker (8) captures detected glass appearance profile, size, graphic information that thickness parameter is relevant, and this graphic information parameter is transferred to Controlling System.
2. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 1, it is characterized in that: the light source (7) in described UV-light feeler mechanism is made up of housing and the ultraviolet source being arranged in housing, is also provided with collimating lens in the direction of UV-irradiation.
3. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 2, it is characterized in that: the housing in described light source (7) and signal picker (8), on its inwall, be equipped with thermofin, on housing, be also provided with heat exchange fan.
4. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 3, it is characterized in that: be also provided with a control device for start by set date UV-light feeler mechanism, the signal output part of control device is connected with light source (7) and signal picker (8) respectively, and control device scans the image in tested region for start by set date light source (7) for system provides illumination and signal picker (8).
5. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 4, it is characterized in that: described control device is arranged on roller-way transporting mechanism (6), be a rotary encoder (9), rotary encoder (9) comes start by set date light source (7) and signal picker (8) according to roller-way upper surface glass translational speed.
6. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 4, it is characterized in that: described UV-light feeler mechanism is arranged on upper slice platform (3) by bracing frame, bracing frame is skeleton construction, light source (7) is arranged on the bracing frame that is positioned at a platform (3) top, signal picker (8) is arranged on the bracing frame that is positioned at a platform (3) below, on upper platform (3), be provided with rail plate, bracing frame is formed and is slidably connected by rail plate and upper slice platform (3).
7. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 1, it is characterized in that: this system is also provided with the detector array for catching visible light wave range, by the fusion of multispectral image information, the distributed intelligence of obtaining glass surface printed patterns is transferred to Controlling System.
8. the glass geometric parameter measurement system based on linear array ultraviolet light detector according to claim 1, it is characterized in that: a side of described lower platform (5), also be provided with the UV-light feeler mechanism for detection of glass surface information after tempering, UV-light feeler mechanism by the information transmission collecting to Controlling System.
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| CN103148805B (en) * | 2013-03-13 | 2015-11-04 | 洛阳兰迪玻璃机器股份有限公司 | Based on the glass appearance detection apparatus of photodetector array |
| CN105241394A (en) * | 2015-10-10 | 2016-01-13 | 平湖拓伟思自动化设备有限公司 | Optical scanner for contour of spectacle lens |
| CN106198399B (en) * | 2016-08-17 | 2023-10-27 | 远方谱色科技有限公司 | Definition measuring device |
| CN106829479B (en) * | 2017-03-25 | 2022-05-13 | 广东高力威机械科技有限公司 | Vertical glass detection conveying table and detection method thereof |
| CN107515637B (en) * | 2017-08-07 | 2020-08-28 | 洛阳兰迪玻璃机器股份有限公司 | Glass plate tempering process control method |
| CN109081557B (en) * | 2018-09-28 | 2021-08-03 | 彩虹（合肥）液晶玻璃有限公司 | Glass sheet generating system and glass sheet offset distance generating method |
| FI128985B (en) * | 2019-10-22 | 2021-04-30 | Glaston Finland Oy | Method and device for controlling heat treatment process of glass sheets |
| CN116589171B (en) * | 2023-07-14 | 2024-01-09 | 江西省博信玻璃有限公司 | Intelligent tempering method and system with automatic glass detection function |
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| JPH0653585B2 (en) * | 1989-07-12 | 1994-07-20 | 旭硝子株式会社 | Heat treatment method for glass plate |
| FI106256B (en) * | 1998-02-18 | 2000-12-29 | Tamglass Ltd Oy | Method and apparatus for directing the heating in a curing oven for glass sheets |
| FI20035031A0 (en) * | 2003-03-12 | 2003-03-12 | Tamglass Ltd Oy | Procedure and apparatus for controlling safety glass production and controlling the treatment process |
| CN102730951B (en) * | 2012-06-22 | 2014-09-24 | 杭州精工机械有限公司 | Special glass tempering furnace for ultrathin tempered glass production line, and heating method thereof |
| CN102757173B (en) * | 2012-06-22 | 2014-11-12 | 杭州精工机械有限公司 | Ultrathin toughened glass production line and production method |
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